add missing Path_aux
add missing Path_aux

fxfactorial/merlin,the-lambda-church/merlin,rgrinberg/merlin,ocaml/merlin,dra27/merlin,the-lambda-church/merlin,ocaml/merlin,fxfactorial/merlin,ocaml/merlin,fxfactorial/merlin,fxfactorial/merlin,rgrinberg/merlin,the-lambda-church/merlin,dra27/merlin,dra27/merlin,rgrinberg/merlin,dra27/merlin,ocaml/merlin,rgrinberg/merlin